196 



Table 54. Continued. 



Test Concentration 

 (ppm) 



Total 

 Mortal i ty 



Per cent 

 Morta 1 i ty 



Corrected 



% Mortal i ty 





ICI Ect : 



., TM 

 i ban 





6.00 



52/60 



86.67 



85.19 



4.00 



43/60 



71.67 



68.52 



2.00 



34/60 



56.67 



51.86 



1 .00 



27/60 



45.00 



38.89 



0.75 



21/60 



35.00 



27.78 



0.50 



13/60 



21.67 



12.97 



Control 



6/60 



10.00 



— — — 



Carbary 1 



10.00 48/60 80.00 77.36 



1-00 41/60 68.33 64.15 



0.50 40/60 66.67 62.27 



0.25 31/60 51.67 45.28 



0.10 20/60 33.33 24.5 



Control 



Control 



48/60 



80.00 



41/60 



68.33 



40/60 



66.67 



31/60 



51.67 



20/60 



33.33 



7/60 



1 1 .67 



Malathion 





52/60 



86.67 



48/60 



80.00 



35/60 



58.33 



29/60 



48.33 



16/60 



26.67 



13/60 



21 .67 



5/60 



8.33 



z 



10.00 52/60 86.67 85.46 



7.00 48/60 80.00 78.I8 



4.00 35/60 58.33 54.54 



1-00 29/60 48.33 43.63 



0.50 16/60 26.67 20.01 



0.10 13/60 21.67 14.55 



Note 



Each test concentration was replicated four times using 



15 mature female northern fowl mites per replication 



